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(function($){ | |
$.fn.reflect = function(options){ | |
var defaults = { | |
opacity: 0.5, | |
height: 0.5 | |
}; | |
options = $.extend({}, defaults, options); | |
this.each(function(){ | |
var $this = $(this); | |
$image = $this.clone(true).css('display', 'block'), | |
$container = $('<div>'), | |
reflectionHeight = Math.floor($this.height()*options.height), | |
reflectionWidth = $this.width(), | |
divHeight = Math.floor($this.height()*(1+options.height)), | |
classes = this.className.split(' '), | |
newClasses = ''; | |
// Fetch classes | |
for (j=0;j<classes.length;j++) { | |
if (classes[j] != "reflect") { | |
if (newClasses) { | |
newClasses += ' ' | |
} | |
newClasses += classes[j]; | |
} | |
} | |
// Copy classes & styles to container | |
$container[0].style.cssText = this.style.cssText; | |
this.className = 'reflected'; | |
$this.wrap($container.attr('class', newClasses)); | |
// TODO: Feature detection instead | |
// IE doesn't support canvases, so we use FlipV filter instead | |
if ($.browser.msie) { | |
$container.append( | |
$image, | |
$image.clone().css({ | |
'filter': 'FlipV progid:DXImageTransform.Microsoft.Alpha(opacity='+(options.opacity*100)+', style=1, finishOpacity=0, startx=0, starty=0, finishx=0, finishy='+(options.height*100)+')' | |
}) | |
); | |
} else { | |
var canvas = document.createElement('canvas'); | |
if (canvas.getContext) { | |
var context = canvas.getContext("2d"); | |
canvas.style.height = reflectionHeight+'px'; | |
canvas.style.width = reflectionWidth+'px'; | |
canvas.height = reflectionHeight; | |
canvas.width = reflectionWidth; | |
$container.append($image, canvas); | |
context.save(); | |
context.translate(0,this.height-1); | |
context.scale(1,-1); | |
context.drawImage(this, 0, 0, reflectionWidth, this.height); | |
context.restore(); | |
context.globalCompositeOperation = "destination-out"; | |
var gradient = context.createLinearGradient(0, 0, 0, reflectionHeight); | |
gradient.addColorStop(1, "rgba(255, 255, 255, 1.0)"); | |
gradient.addColorStop(0, "rgba(255, 255, 255, "+(1-options.opacity)+")"); | |
context.fillStyle = gradient; | |
context.rect(0, 0, reflectionWidth, reflectionHeight*2); | |
context.fill(); | |
} | |
} | |
// Replace the original image | |
$this.replaceWith($container); | |
}); | |
}; | |
})(jQuery); | |
$(function(){ | |
$('.reflect').reflect(); | |
}); |
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